[PATCH -v2] PCI,pciehp: Not write linkctrl register if val is not changed

Most system have port link enabled by default, and should not have confusing printout. Also move printout before actully write, so could make debug print in order. -v2: inline __pciehp_link_set into pciehp_link_enable Signed-off-by: Yinghai Lu ---

[PATCH -v2] PCI,pciehp: Not write linkctrl register if val is not changed

Most system have port link enabled by default, and should not have confusing printout. Also move printout before actully write, so could make debug print in order. -v2: inline __pciehp_link_set into pciehp_link_enable Signed-off-by: Yinghai Lu --- drivers/pci/hotplug/pciehp_hpc.c | 19